Flicker user "lithuimbomb9999" bought this '73 BMW Bavaria back in 2001 and informs us that instead of one of the stock engines from its time (either a 2.8L or 3.0L inline 6 making 170 - 190 HP), the engine compartment of this old Bimmer hides a 3.5L six-cylinder from an '88 535i. That gives the car somewhere between 200 and 220 horsepower and, as lithiumbom puts it, "boatloads of torque." Other mechanical updates include a metric mechanic sport cam, dual weber 32/36 DGAV carbs and later-model s